John killip



(No Model.)

J. KILLIP.

STEAM GOVERNOR.

No. 320,478. Patented June 23, 1885.

MLLFssES lllellm n A Hema... 7 M m A21/@Mm UNITED STATES PATENT OEEICE.

JOHN KILLIP, OF ALLEGHENY, PENNSYLVAFIA, ASSIGNOR OF ONF-HALF TO HENRYCLAY BAIR, OF SAME PLACE.

STEAMrGOVERNOR.

SPECIFICATION forming part of Letters Patent No. 320,478, dated June 2311885.

(No model.)

To (LZZ whom it may concern:

Be it known that l, JOHN KILLIP, of Allegheny city, in the county ofAllegheny and State ofPennsylvania, have invented a new and usefulImprovement in Speed-Governors; and I do hereby declare the following tobe a full, clear, and exact description thereof, reference being had tothe accompanying drawings, forming part of this specification, in whichFigure lis a plan view of my improved governor. Fig. 2 is a longitudinalvertical section on the line 00 x, Fig. l. Fig. 3 is a verticalcross'section on the line y y of Fig. 2.

Like letters of reference indicate like parts in each.

The drawings illustrate my invention as applied to a horizontalgovernor.

Upon a suitable bed plate or casting, a, are

standards b b, upon which in suitable boxes,b, is a hollow shaft orspindle, c. On the shaft c is a pulley, c', by means of which it isdriven. At one end of the shaft c are two arms, c2 c2, extendinglongitudinally from the sides of the shaft, so as to form a recess orcavity, c3, between them. The outer end of each arm c2 is bifurcated orrecessed, forming' two lugs,c4,on each. Between the lugs c4 is a pin, d,upon which are pivoted the arms d2 of the balls d.

Extending longitudinally through the shaft c is a sliding rod, e, whichhas a head or enlargement, e', at its outer end between the arms c2 ofthe shaft c. The outer end of the shaft c is bored out to a largerdiameter for a short distance inward from the recess o3, as at c5, andis provided with a shoulder, c, at the inner end of said bored-outportion. A strong spiral spring, f, is placed on the rod e, and bears atone end on the shoulder oG and at the other against the head e of therod c,or against a tension-nut, e4, placed thereon, audits function isto press the rod e outward.

Extending inward from the pivots d and attached to the arms d are shortarms dwhich bear against the outer face of the head e. On the inner endsof the arms d2, just back of the pivots d,are projections or shouldersd3,which, when the balls are at rest, bear or rest upon the straightsurfaces el at the bottom of the recesses between thelugs c, Vhen thegovernor is at rest, the rod e, being forced out by the spring f andbearing against the arms d4, forces the balls d inward toward the shaftc, as shown in Fig. 2, and causes the projections d3 to rest againstthesurfaces c7. Thus the surfaces c7 act as stops to limit the inwardmovement of the balls.

.At the other end of the rod c is a wrist, e2,

vwhich extends through the bearing y, and at vided for the lubricationof the wrist ci. The

other end ofthe yoke or bearing is connected to the valve-stem i bymeans of a nut, or in any other suit-able way, as at g2. The valvestem ipasses through a stuffing-box, i,which box is secured to the valve-boxk. The valve z' is fastened to the inner end ofthe valve-stern z", andworks in the valve-chamber k', having c its seat at k2 around thesteam-inlet Z.

The valve is guided in its movement by an annular guide, il, havingradial arms t, said arms being recessed in the sides to permit the freepassage of the stem through the chamber k around and at the rear side ofthe valve The exit-port is shown atm, and itis led back through thebed-plate or casting a to or near 8O to the center of the device, wherethe casing is provided with a flange, m', by means of which it isattached in the required position. The purpose of leadi ng the port mback through the leg or standard of the governor is to save 8 5 theexpense of a separate attachment or to bring the standard at or near thecenter of gravity of the device, and `thereby to sustain it in a betterand more workmanlike way than would be the case if it was placed at theend ofthe governor directly under the valve-cham ber.

The operation of my improved governor is similar to that of othergovernors. An acceleration of the speed of the shaft c increases the 9 5centrifugal action of the balls (Z, causing them to turn on the pivotsel and iiy outward, and the arms d4 to press on the end of the rod e,forcing it inward against the spring f and causing it to close the valvei sufficiently to roo reduce the steam-opening, and thereby the velocityof the engine.

Am ong the other advantages of my improved governor are its simplicityof construction, durability, and efficiency.

By removing the caps b2 and taking out the pin and Washer e3 the shaftc, rod e, and governor-balls may be removed from their bearings andtaken apart for repairs.

This governor may be arranged vertically by using bevel or othersuitable gearing for turning the shaft.

The rod e, While having no positive connection with the shaft c, iscaused by the friction to rotate therewith, and hence it is necessary toform the bearing g With a journal-box, g3, in which the Wrist e2revolves.

The stem fi ofthe valve has a sliding motion, but does not rotate.

What I claim as my invention secure by Letters Patent, is-

1. rI he combination of the rotatory shaft,

, and desire to balls pivoted thereto having` arms, central sliding rodagainst which the ends of the ball.- arms bear, a slotted slidingbearing having a journal-box in one end, and a valve, the stem of whichis connected to the said sliding bearing, substantially as and for thepurposes described.

2. The combination of a rotator'y longitudinal1y-moving stem of asteamgovernor,a slotted sliding bearing, and the non-rotatory slidingstem of the valve which controls the admission of steam to thesteam-engine, substantially as and for the purposes described.

In testimony whereof I have hereuntoVv set my hand this 7th day ofAugust,A. D. 1882.

JOI-IN KILLIP.

Witnesses:

T. B. KERR, JAMES H. PORTE.

